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1
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Following combination of gates is equivalent to

MHT CET 2024 11th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 30 English

A
NAND gate
B
OR gate
C
NOR gate
D
X-OR gate
2
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If ' $\mathrm{n}_{\mathrm{c}}$ ' and ' $\mathrm{n}_{\mathrm{h}}$ ' are the number of electrons and number of holes respectively in a semiconductor heavily doped with phosphorous then

A
$\mathrm{n}_{\mathrm{e}} \gg \mathrm{n}_{\mathrm{h}}$
B
$\mathrm{n}_{\mathrm{e}} \ll<\mathrm{n}_{\mathrm{h}}$
C
$\mathrm{n}_{\mathrm{e}} \leqslant \mathrm{n}_{\mathrm{h}}$
D
$\mathrm{n}_{\mathrm{e}}=\mathrm{n}_{\mathrm{h}}$
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A p-n junction diode cannot be used

A
as a rectifier.
B
for converting light energy to electrical energy.
C
for getting light radiation.
D
for increasing the amplitude of an a.c. signal.
4
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In semiconductors at room temperature,

A
the valence band is completely filled and the conduction band partially filled.
B
the valence band is completely filled.
C
the conduction band is completely filled.
D
the valence band is partially empty and the conduction band partially filled.
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